Phone: (469) 634-4200

dsTest, Developing Solutions, Sd Interface, TDF Testing, PCRF Testing, Big Data, DPI Testing

dsTest supports the  Sd Diameter interface on both the (client) Policy Charging and Rules Function (PCRF) and the (server) Traffic Detection Function (TDF) in 3GPP LTE networks.  Test the provisioning and reporting of Application Detection and Control (ADC) rules on your TDF with our PCRF Emulator.  Test the capacity and performance of your PCRF with TDF simulation.  The Sd reference point is stateful.

You may have legacy Deep Packet Inspection (DPI) applications that have been providing policy enforcement information to your PCRF.  Verify that these applications still perform correctly with your latest PCC implementations.  Test new DPI applications against your PCRF and TDF implementations.   This testing also supports the primary use of Big Data – to identify new patterns and allow them to provide new business opportunities, revenues, and efficiencies  to network operators.

dsTest allows you to leverage your existing tools and test environments, supplementing your testing without major investment in new testing resources.  For more information, see our Use Case on Testing DPI within an Existing PDN test environment.

Use the PCRF Emulator and the Sd Interface application in tandem to test Diameter Routing Agents (DRA),  Proxies, Relay Agents, and Redirect Agents.   dsTest provides more tools for EPC Interface Testing.

Comprehensive sets of operational measurements for the Sd Interface, Diameter, and socket level are collected at configurable intervals and stored in a SQLite database on the dsTest server.  Real-time measurements may be retrieved through our dsClient CLI interface or graphed via our dsClient GUI interface.


The Sd Interface application provides for:

  • Provisioning of Application Detection and Control (ADC) rules from the PCRF for the purpose of traffic detection and enforcement at the TDF;
  • Usage monitoring control of TDF sessions and of detected applications;
  • Reporting the start/stop of a detected application’s traffic.

The Sd application implements the following procedures for the PCRF:

  • Installation of ADC rules on the TDF;
  • Removal of ADC rules on the TDF;
  • Provisioning of ADC event triggers on the TDF.

The Sd application implements the following procedures for the TDF:

  • Transfer of service data flow descriptions for detected applications from the TDF to the PCRF;
  • Transfer of application instance identifier from the TDF to the PCRF.

A complete set of events that can be generated with the Sd interface application can be found here.

TDF Testing (Client Sd Simulation)dsTest, Developing Solutions, Sd Testing, TDF Testing, PCRF Testing, Big Data, DPI, Deep Packet Inspection

Our PCRF Simulator executes procedures based on configurable subscriber profiles and service profiles, responding to requests and reports from TDFs and eliminating the need to dedicate a production server to lab activities.

Read more about testing Policy Management.

PCRF Testing (Server Sd Emulation)

dsTest, Developing Solutions, Sd Interface, PCRF Testing, TDF Testing, Deep Packet Inspection, Big DataThe Sd Interface application can be used to simulate a TDF’s functionality to test new traffic detection rules on your PCRF before they are deployed in a network.  The Sd Interface application allows users to validate PCRF performance and capacity in a realistic network environment, replicating the deployment configuration.

Multiple TDF emulators can be instantiated on a single server, each with scalable subscriber loads and transaction rates. In this mode,  up to 1000 independent nodes may be simultaneously simulated.

Advanced Diameter Testing Features

Enhance your testing with Developing Solutions® testing assistance solutions:

  • Insert, delete, or replace AVPs in your messages with our SmartAVP solution.  SmartAVP enables you to define proprietary signaling or to corrupt AVPs to facilitate negative testing.
  • Configure commands to define the series of actions and rates that each subscriber takes. Advanced profiles can be created using SmartEvents to define a mix of traffic based on probability assignments.  With SmartEvents, you can specify when your SmartAVPs are used.
  • Define a set of message templates against which all messages will be validated with our Diameter Dictionary.  Every Diameter message is validated, even under load conditions.

Read more about our SmartEvents feature.
Read more about our Advanced Diameter Testing Features.

Supporting StandardsPCRF Emulation, TDF Simulation